EP 1907668 A4 20150218 - METHOD AND APPARATUS FOR MONITORING GATEROAD STRUCTURAL CHANGE
Title (en)
METHOD AND APPARATUS FOR MONITORING GATEROAD STRUCTURAL CHANGE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ÜBERWACHUNG VON STRUKTURELLEN VERÄNDERUNGEN IN DER FLÖZSTRECKE
Title (fr)
PROCEDE ET APPAREIL DE SURVEILLANCE DE LA VARIATION D'UNE STRUCTURE DE GALERIE
Publication
Application
Priority
AU 2005001039 W 20050715
Abstract (en)
[origin: WO2007009149A1] A method and apparatus is provided for determining structural change in a mining operation. A first scan of gateroad surfaces is obtained and information of the scan profile is stored. At a later time a second scan of the gateroad surfaces is then obtained. Information of the scans can be registered and any difference noted. If the difference exceeds a threshold a warning can be provided indicating a gateroad structural change that may be hazardous. The scans can be made from a single sensor, or from multiple sensors (301, 303). In the case where the sensors (301, 303) are mounted on a gateroad traversing structure (109), the distance of spacing of the sensors (301, 303) can be used to determine when the sensor (303) has reached a position of movement or travel of the gateroad traversing structure (109) where the scan from sensor (301) was made. A distance sensor (309) can be provided to determine the distance of movement and where the scans coincide.
IPC 8 full level
E21F 17/00 (2006.01)
CPC (source: EP US)
E21F 17/185 (2013.01 - EP US)
Citation (search report)
- [X] US 4884847 A 19891205 - BESSINGER STEPHEN L [US], et al
- [X] GB 2094470 A 19820915 - DYK JOHANNES WILHELMUS VAN
- [X] US 2003052529 A1 20030320 - HAKKINEN LEO [FI]
- [X] GB 2173301 A 19861008 - TUNNEL INVESTIGATIONS LIMITED
- [X] GB 2098329 A 19821117 - KIRKPATRICK J A & PARTNERS HOL
- [A] CN 2077027 U 19910515 - HONGXING RADIO FACTORY CHONGQI [CN]
- See references of WO 2007009149A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007009149 A1 20070125; AU 2005334789 A1 20070125; AU 2005334789 B2 20111222; CA 2613487 A1 20070125; CA 2613487 C 20110906; CN 100567706 C 20091209; CN 101223336 A 20080716; EA 010959 B1 20081230; EA 200800340 A1 20080630; EP 1907668 A1 20080409; EP 1907668 A4 20150218; EP 1907668 B1 20170510; HK 1116233 A1 20081219; JP 2009500547 A 20090108; PL 1907668 T3 20171031; US 2009134692 A1 20090528; US 8240773 B2 20120814
DOCDB simple family (application)
AU 2005001039 W 20050715; AU 2005334789 A 20050715; CA 2613487 A 20050715; CN 200580051084 A 20050715; EA 200800340 A 20050715; EP 05760735 A 20050715; HK 08110982 A 20080930; JP 2008520672 A 20050715; PL 05760735 T 20050715; US 99577805 A 20050715